If the internal mechanism defect of aluminum profile causes the surface is not smooth: Angle code aluminum profile casting mechanism, such as casting or aluminum die-casting aluminum product workpiece; Aluminum profile crystal optimization is not sufficient and loose, welding defects; In the production process, defects such as insufficient shape variables and pine dendritic lines lead to uneven surface, which can be avoided by improving the internal quality of aluminum profiles. Therefore, the processing process of aluminum profile manufacturers seems to be crucial to improve the surface quality of anodic oxidation process.        

        The unsmooth condition of aluminum profile surface after anodic oxidation process in industrial production may be caused by the defect, which may be caused by the high content of sodium cyanide in the tank liquid and acid and alkaline corrosion. There may also be defects in the internal mechanism of the aluminum profile causing the surface is not smooth.     

        If the copper content in the tank is also high, the unsmooth surface will be more serious. Usually, if the content of sodium cyanide in the tank is too high, the anodic oxidation process reflects strongly, resulting in "boiling" condition. If the sodium cyanide content is normal and the copper content is high, the surface of the aluminum profile after water cleaning has a very significant layer of metallic material copper symptom tone.